// Copyright (c) 2009-2010 Satoshi Nakamoto // Copyright (c) 2009-2016 The Bitcoin Core developers // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. #if defined(HAVE_CONFIG_H) #include "config/bitcoin-config.h" #endif #include "init.h" #include "addrman.h" #include "amount.h" #include "chain.h" #include "chainparams.h" #include "checkpoints.h" #include "compat/sanity.h" #include "consensus/validation.h" #include "httpserver.h" #include "httprpc.h" #include "key.h" #include "validation.h" #include "miner.h" #include "netbase.h" #include "net.h" #include "net_processing.h" #include "policy/policy.h" #include "rpc/server.h" #include "rpc/register.h" #include "script/standard.h" #include "script/sigcache.h" #include "scheduler.h" #include "timedata.h" #include "txdb.h" #include "txmempool.h" #include "torcontrol.h" #include "ui_interface.h" #include "util.h" #include "utilmoneystr.h" #include "validationinterface.h" #ifdef ENABLE_WALLET #include "wallet/wallet.h" #endif #include "warnings.h" #include #include #include #ifndef WIN32 #include #endif #include #include #include #include #include #include #include #include #include #include #if ENABLE_ZMQ #include "zmq/zmqnotificationinterface.h" #endif using namespace std; bool fFeeEstimatesInitialized = false; static const bool DEFAULT_PROXYRANDOMIZE = true; static const bool DEFAULT_REST_ENABLE = false; static const bool DEFAULT_DISABLE_SAFEMODE = false; static const bool DEFAULT_STOPAFTERBLOCKIMPORT = false; std::unique_ptr g_connman; std::unique_ptr peerLogic; #if ENABLE_ZMQ static CZMQNotificationInterface* pzmqNotificationInterface = NULL; #endif #ifdef WIN32 // Win32 LevelDB doesn't use filedescriptors, and the ones used for // accessing block files don't count towards the fd_set size limit // anyway. #define MIN_CORE_FILEDESCRIPTORS 0 #else #define MIN_CORE_FILEDESCRIPTORS 150 #endif /** Used to pass flags to the Bind() function */ enum BindFlags { BF_NONE = 0, BF_EXPLICIT = (1U << 0), BF_REPORT_ERROR = (1U << 1), BF_WHITELIST = (1U << 2), }; static const char* FEE_ESTIMATES_FILENAME="fee_estimates.dat"; ////////////////////////////////////////////////////////////////////////////// // // Shutdown // // // Thread management and startup/shutdown: // // The network-processing threads are all part of a thread group // created by AppInit() or the Qt main() function. // // A clean exit happens when StartShutdown() or the SIGTERM // signal handler sets fRequestShutdown, which triggers // the DetectShutdownThread(), which interrupts the main thread group. // DetectShutdownThread() then exits, which causes AppInit() to // continue (it .joins the shutdown thread). // Shutdown() is then // called to clean up database connections, and stop other // threads that should only be stopped after the main network-processing // threads have exited. // // Note that if running -daemon the parent process returns from AppInit2 // before adding any threads to the threadGroup, so .join_all() returns // immediately and the parent exits from main(). // // Shutdown for Qt is very similar, only it uses a QTimer to detect // fRequestShutdown getting set, and then does the normal Qt // shutdown thing. // std::atomic fRequestShutdown(false); void StartShutdown() { fRequestShutdown = true; } bool ShutdownRequested() { return fRequestShutdown; } /** * This is a minimally invasive approach to shutdown on LevelDB read errors from the * chainstate, while keeping user interface out of the common library, which is shared * between bitcoind, and bitcoin-qt and non-server tools. */ class CCoinsViewErrorCatcher : public CCoinsViewBacked { public: CCoinsViewErrorCatcher(CCoinsView* view) : CCoinsViewBacked(view) {} bool GetCoins(const uint256 &txid, CCoins &coins) const { try { return CCoinsViewBacked::GetCoins(txid, coins); } catch(const std::runtime_error& e) { uiInterface.ThreadSafeMessageBox(_("Error reading from database, shutting down."), "", CClientUIInterface::MSG_ERROR); LogPrintf("Error reading from database: %s\n", e.what()); // Starting the shutdown sequence and returning false to the caller would be // interpreted as 'entry not found' (as opposed to unable to read data), and // could lead to invalid interpretation. Just exit immediately, as we can't // continue anyway, and all writes should be atomic. abort(); } } // Writes do not need similar protection, as failure to write is handled by the caller. }; static CCoinsViewDB *pcoinsdbview = NULL; static CCoinsViewErrorCatcher *pcoinscatcher = NULL; static std::unique_ptr globalVerifyHandle; void Interrupt(boost::thread_group& threadGroup) { InterruptHTTPServer(); InterruptHTTPRPC(); InterruptRPC(); InterruptREST(); InterruptTorControl(); if (g_connman) g_connman->Interrupt(); threadGroup.interrupt_all(); } void Shutdown() { LogPrintf("%s: In progress...\n", __func__); static CCriticalSection cs_Shutdown; TRY_LOCK(cs_Shutdown, lockShutdown); if (!lockShutdown) return; /// Note: Shutdown() must be able to handle cases in which AppInit2() failed part of the way, /// for example if the data directory was found to be locked. /// Be sure that anything that writes files or flushes caches only does this if the respective /// module was initialized. RenameThread("bitcoin-shutoff"); mempool.AddTransactionsUpdated(1); StopHTTPRPC(); StopREST(); StopRPC(); StopHTTPServer(); #ifdef ENABLE_WALLET if (pwalletMain) pwalletMain->Flush(false); #endif MapPort(false); UnregisterValidationInterface(peerLogic.get()); peerLogic.reset(); g_connman.reset(); StopTorControl(); UnregisterNodeSignals(GetNodeSignals()); DumpMempool(); if (fFeeEstimatesInitialized) { boost::filesystem::path est_path = GetDataDir() / FEE_ESTIMATES_FILENAME; CAutoFile est_fileout(fopen(est_path.string().c_str(), "wb"), SER_DISK, CLIENT_VERSION); if (!est_fileout.IsNull()) mempool.WriteFeeEstimates(est_fileout); else LogPrintf("%s: Failed to write fee estimates to %s\n", __func__, est_path.string()); fFeeEstimatesInitialized = false; } { LOCK(cs_main); if (pcoinsTip != NULL) { FlushStateToDisk(); } delete pcoinsTip; pcoinsTip = NULL; delete pcoinscatcher; pcoinscatcher = NULL; delete pcoinsdbview; pcoinsdbview = NULL; delete pblocktree; pblocktree = NULL; } #ifdef ENABLE_WALLET if (pwalletMain) pwalletMain->Flush(true); #endif #if ENABLE_ZMQ if (pzmqNotificationInterface) { UnregisterValidationInterface(pzmqNotificationInterface); delete pzmqNotificationInterface; pzmqNotificationInterface = NULL; } #endif #ifndef WIN32 try { boost::filesystem::remove(GetPidFile()); } catch (const boost::filesystem::filesystem_error& e) { LogPrintf("%s: Unable to remove pidfile: %s\n", __func__, e.what()); } #endif UnregisterAllValidationInterfaces(); #ifdef ENABLE_WALLET delete pwalletMain; pwalletMain = NULL; #endif globalVerifyHandle.reset(); ECC_Stop(); LogPrintf("%s: done\n", __func__); } /** * Signal handlers are very limited in what they are allowed to do, so: */ void HandleSIGTERM(int) { fRequestShutdown = true; } void HandleSIGHUP(int) { fReopenDebugLog = true; } bool static Bind(CConnman& connman, const CService &addr, unsigned int flags) { if (!(flags & BF_EXPLICIT) && IsLimited(addr)) return false; std::string strError; if (!connman.BindListenPort(addr, strError, (flags & BF_WHITELIST) != 0)) { if (flags & BF_REPORT_ERROR) return InitError(strError); return false; } return true; } void OnRPCStarted() { uiInterface.NotifyBlockTip.connect(&RPCNotifyBlockChange); } void OnRPCStopped() { uiInterface.NotifyBlockTip.disconnect(&RPCNotifyBlockChange); RPCNotifyBlockChange(false, nullptr); cvBlockChange.notify_all(); LogPrint("rpc", "RPC stopped.\n"); } void OnRPCPreCommand(const CRPCCommand& cmd) { // Observe safe mode string strWarning = GetWarnings("rpc"); if (strWarning != "" && !GetBoolArg("-disablesafemode", DEFAULT_DISABLE_SAFEMODE) && !cmd.okSafeMode) throw JSONRPCError(RPC_FORBIDDEN_BY_SAFE_MODE, string("Safe mode: ") + strWarning); } std::string HelpMessage(HelpMessageMode mode) { const bool showDebug = GetBoolArg("-help-debug", false); // When adding new options to the categories, please keep and ensure alphabetical ordering. // Do not translate _(...) -help-debug options, Many technical terms, and only a very small audience, so is unnecessary stress to translators. string strUsage = HelpMessageGroup(_("Options:")); strUsage += HelpMessageOpt("-?", _("Print this help message and exit")); strUsage += HelpMessageOpt("-version", _("Print version and exit")); strUsage += HelpMessageOpt("-alertnotify=", _("Execute command when a relevant alert is received or we see a really long fork (%s in cmd is replaced by message)")); strUsage += HelpMessageOpt("-blocknotify=", _("Execute command when the best block changes (%s in cmd is replaced by block hash)")); if (showDebug) strUsage += HelpMessageOpt("-blocksonly", strprintf(_("Whether to operate in a blocks only mode (default: %u)"), DEFAULT_BLOCKSONLY)); strUsage += HelpMessageOpt("-checkblocks=", strprintf(_("How many blocks to check at startup (default: %u, 0 = all)"), DEFAULT_CHECKBLOCKS)); strUsage += HelpMessageOpt("-checklevel=", strprintf(_("How thorough the block verification of -checkblocks is (0-4, default: %u)"), DEFAULT_CHECKLEVEL)); strUsage += HelpMessageOpt("-conf=", strprintf(_("Specify configuration file (default: %s)"), BITCOIN_CONF_FILENAME)); if (mode == HMM_BITCOIND) { #if HAVE_DECL_DAEMON strUsage += HelpMessageOpt("-daemon", _("Run in the background as a daemon and accept commands")); #endif } strUsage += HelpMessageOpt("-datadir=", _("Specify data directory")); strUsage += HelpMessageOpt("-dbcache=", strprintf(_("Set database cache size in megabytes (%d to %d, default: %d)"), nMinDbCache, nMaxDbCache, nDefaultDbCache)); if (showDebug) strUsage += HelpMessageOpt("-feefilter", strprintf("Tell other nodes to filter invs to us by our mempool min fee (default: %u)", DEFAULT_FEEFILTER)); strUsage += HelpMessageOpt("-loadblock=", _("Imports blocks from external blk000??.dat file on startup")); strUsage += HelpMessageOpt("-maxorphantx=", strprintf(_("Keep at most unconnectable transactions in memory (default: %u)"), DEFAULT_MAX_ORPHAN_TRANSACTIONS)); strUsage += HelpMessageOpt("-maxmempool=", strprintf(_("Keep the transaction memory pool below megabytes (default: %u)"), DEFAULT_MAX_MEMPOOL_SIZE)); strUsage += HelpMessageOpt("-mempoolexpiry=", strprintf(_("Do not keep transactions in the mempool longer than hours (default: %u)"), DEFAULT_MEMPOOL_EXPIRY)); strUsage += HelpMessageOpt("-par=", strprintf(_("Set the number of script verification threads (%u to %d, 0 = auto, <0 = leave that many cores free, default: %d)"), -GetNumCores(), MAX_SCRIPTCHECK_THREADS, DEFAULT_SCRIPTCHECK_THREADS)); #ifndef WIN32 strUsage += HelpMessageOpt("-pid=", strprintf(_("Specify pid file (default: %s)"), BITCOIN_PID_FILENAME)); #endif strUsage += HelpMessageOpt("-prune=", strprintf(_("Reduce storage requirements by pruning (deleting) old blocks. This mode is incompatible with -txindex and -rescan. " "Warning: Reverting this setting requires re-downloading the entire blockchain. " "(default: 0 = disable pruning blocks, >%u = target size in MiB to use for block files)"), MIN_DISK_SPACE_FOR_BLOCK_FILES / 1024 / 1024)); strUsage += HelpMessageOpt("-reindex-chainstate", _("Rebuild chain state from the currently indexed blocks")); strUsage += HelpMessageOpt("-reindex", _("Rebuild chain state and block index from the blk*.dat files on disk")); #ifndef WIN32 strUsage += HelpMessageOpt("-sysperms", _("Create new files with system default permissions, instead of umask 077 (only effective with disabled wallet functionality)")); #endif strUsage += HelpMessageOpt("-txindex", strprintf(_("Maintain a full transaction index, used by the getrawtransaction rpc call (default: %u)"), DEFAULT_TXINDEX)); strUsage += HelpMessageGroup(_("Connection options:")); strUsage += HelpMessageOpt("-addnode=", _("Add a node to connect to and attempt to keep the connection open")); strUsage += HelpMessageOpt("-banscore=", strprintf(_("Threshold for disconnecting misbehaving peers (default: %u)"), DEFAULT_BANSCORE_THRESHOLD)); strUsage += HelpMessageOpt("-bantime=", strprintf(_("Number of seconds to keep misbehaving peers from reconnecting (default: %u)"), DEFAULT_MISBEHAVING_BANTIME)); strUsage += HelpMessageOpt("-bind=", _("Bind to given address and always listen on it. Use [host]:port notation for IPv6")); strUsage += HelpMessageOpt("-connect=", _("Connect only to the specified node(s); -noconnect or -connect=0 alone to disable automatic connections")); strUsage += HelpMessageOpt("-discover", _("Discover own IP addresses (default: 1 when listening and no -externalip or -proxy)")); strUsage += HelpMessageOpt("-dns", _("Allow DNS lookups for -addnode, -seednode and -connect") + " " + strprintf(_("(default: %u)"), DEFAULT_NAME_LOOKUP)); strUsage += HelpMessageOpt("-dnsseed", _("Query for peer addresses via DNS lookup, if low on addresses (default: 1 unless -connect/-noconnect)")); strUsage += HelpMessageOpt("-externalip=", _("Specify your own public address")); strUsage += HelpMessageOpt("-forcednsseed", strprintf(_("Always query for peer addresses via DNS lookup (default: %u)"), DEFAULT_FORCEDNSSEED)); strUsage += HelpMessageOpt("-listen", _("Accept connections from outside (default: 1 if no -proxy or -connect/-noconnect)")); strUsage += HelpMessageOpt("-listenonion", strprintf(_("Automatically create Tor hidden service (default: %d)"), DEFAULT_LISTEN_ONION)); strUsage += HelpMessageOpt("-maxconnections=", strprintf(_("Maintain at most connections to peers (default: %u)"), DEFAULT_MAX_PEER_CONNECTIONS)); strUsage += HelpMessageOpt("-maxreceivebuffer=", strprintf(_("Maximum per-connection receive buffer, *1000 bytes (default: %u)"), DEFAULT_MAXRECEIVEBUFFER)); strUsage += HelpMessageOpt("-maxsendbuffer=", strprintf(_("Maximum per-connection send buffer, *1000 bytes (default: %u)"), DEFAULT_MAXSENDBUFFER)); strUsage += HelpMessageOpt("-maxtimeadjustment", strprintf(_("Maximum allowed median peer time offset adjustment. Local perspective of time may be influenced by peers forward or backward by this amount. (default: %u seconds)"), DEFAULT_MAX_TIME_ADJUSTMENT)); strUsage += HelpMessageOpt("-onion=", strprintf(_("Use separate SOCKS5 proxy to reach peers via Tor hidden services (default: %s)"), "-proxy")); strUsage += HelpMessageOpt("-onlynet=", _("Only connect to nodes in network (ipv4, ipv6 or onion)")); strUsage += HelpMessageOpt("-permitbaremultisig", strprintf(_("Relay non-P2SH multisig (default: %u)"), DEFAULT_PERMIT_BAREMULTISIG)); strUsage += HelpMessageOpt("-peerbloomfilters", strprintf(_("Support filtering of blocks and transaction with bloom filters (default: %u)"), DEFAULT_PEERBLOOMFILTERS)); strUsage += HelpMessageOpt("-port=", strprintf(_("Listen for connections on (default: %u or testnet: %u)"), Params(CBaseChainParams::MAIN).GetDefaultPort(), Params(CBaseChainParams::TESTNET).GetDefaultPort())); strUsage += HelpMessageOpt("-proxy=", _("Connect through SOCKS5 proxy")); strUsage += HelpMessageOpt("-proxyrandomize", strprintf(_("Randomize credentials for every proxy connection. This enables Tor stream isolation (default: %u)"), DEFAULT_PROXYRANDOMIZE)); strUsage += HelpMessageOpt("-rpcserialversion", strprintf(_("Sets the serialization of raw transaction or block hex returned in non-verbose mode, non-segwit(0) or segwit(1) (default: %d)"), DEFAULT_RPC_SERIALIZE_VERSION)); strUsage += HelpMessageOpt("-seednode=", _("Connect to a node to retrieve peer addresses, and disconnect")); strUsage += HelpMessageOpt("-timeout=", strprintf(_("Specify connection timeout in milliseconds (minimum: 1, default: %d)"), DEFAULT_CONNECT_TIMEOUT)); strUsage += HelpMessageOpt("-torcontrol=:", strprintf(_("Tor control port to use if onion listening enabled (default: %s)"), DEFAULT_TOR_CONTROL)); strUsage += HelpMessageOpt("-torpassword=", _("Tor control port password (default: empty)")); #ifdef USE_UPNP #if USE_UPNP strUsage += HelpMessageOpt("-upnp", _("Use UPnP to map the listening port (default: 1 when listening and no -proxy)")); #else strUsage += HelpMessageOpt("-upnp", strprintf(_("Use UPnP to map the listening port (default: %u)"), 0)); #endif #endif strUsage += HelpMessageOpt("-whitebind=", _("Bind to given address and whitelist peers connecting to it. Use [host]:port notation for IPv6")); strUsage += HelpMessageOpt("-whitelist=", _("Whitelist peers connecting from the given IP address (e.g. 1.2.3.4) or CIDR notated network (e.g. 1.2.3.0/24). Can be specified multiple times.") + " " + _("Whitelisted peers cannot be DoS banned and their transactions are always relayed, even if they are already in the mempool, useful e.g. for a gateway")); strUsage += HelpMessageOpt("-whitelistrelay", strprintf(_("Accept relayed transactions received from whitelisted peers even when not relaying transactions (default: %d)"), DEFAULT_WHITELISTRELAY)); strUsage += HelpMessageOpt("-whitelistforcerelay", strprintf(_("Force relay of transactions from whitelisted peers even if they violate local relay policy (default: %d)"), DEFAULT_WHITELISTFORCERELAY)); strUsage += HelpMessageOpt("-maxuploadtarget=", strprintf(_("Tries to keep outbound traffic under the given target (in MiB per 24h), 0 = no limit (default: %d)"), DEFAULT_MAX_UPLOAD_TARGET)); #ifdef ENABLE_WALLET strUsage += CWallet::GetWalletHelpString(showDebug); #endif #if ENABLE_ZMQ strUsage += HelpMessageGroup(_("ZeroMQ notification options:")); strUsage += HelpMessageOpt("-zmqpubhashblock=
", _("Enable publish hash block in
")); strUsage += HelpMessageOpt("-zmqpubhashtx=
", _("Enable publish hash transaction in
")); strUsage += HelpMessageOpt("-zmqpubrawblock=
", _("Enable publish raw block in
")); strUsage += HelpMessageOpt("-zmqpubrawtx=
", _("Enable publish raw transaction in
")); #endif strUsage += HelpMessageGroup(_("Debugging/Testing options:")); strUsage += HelpMessageOpt("-uacomment=", _("Append comment to the user agent string")); if (showDebug) { strUsage += HelpMessageOpt("-checkblockindex", strprintf("Do a full consistency check for mapBlockIndex, setBlockIndexCandidates, chainActive and mapBlocksUnlinked occasionally. Also sets -checkmempool (default: %u)", Params(CBaseChainParams::MAIN).DefaultConsistencyChecks())); strUsage += HelpMessageOpt("-checkmempool=", strprintf("Run checks every transactions (default: %u)", Params(CBaseChainParams::MAIN).DefaultConsistencyChecks())); strUsage += HelpMessageOpt("-checkpoints", strprintf("Disable expensive verification for known chain history (default: %u)", DEFAULT_CHECKPOINTS_ENABLED)); strUsage += HelpMessageOpt("-disablesafemode", strprintf("Disable safemode, override a real safe mode event (default: %u)", DEFAULT_DISABLE_SAFEMODE)); strUsage += HelpMessageOpt("-testsafemode", strprintf("Force safe mode (default: %u)", DEFAULT_TESTSAFEMODE)); strUsage += HelpMessageOpt("-dropmessagestest=", "Randomly drop 1 of every network messages"); strUsage += HelpMessageOpt("-fuzzmessagestest=", "Randomly fuzz 1 of every network messages"); strUsage += HelpMessageOpt("-stopafterblockimport", strprintf("Stop running after importing blocks from disk (default: %u)", DEFAULT_STOPAFTERBLOCKIMPORT)); strUsage += HelpMessageOpt("-limitancestorcount=", strprintf("Do not accept transactions if number of in-mempool ancestors is or more (default: %u)", DEFAULT_ANCESTOR_LIMIT)); strUsage += HelpMessageOpt("-limitancestorsize=", strprintf("Do not accept transactions whose size with all in-mempool ancestors exceeds kilobytes (default: %u)", DEFAULT_ANCESTOR_SIZE_LIMIT)); strUsage += HelpMessageOpt("-limitdescendantcount=", strprintf("Do not accept transactions if any ancestor would have or more in-mempool descendants (default: %u)", DEFAULT_DESCENDANT_LIMIT)); strUsage += HelpMessageOpt("-limitdescendantsize=", strprintf("Do not accept transactions if any ancestor would have more than kilobytes of in-mempool descendants (default: %u).", DEFAULT_DESCENDANT_SIZE_LIMIT)); strUsage += HelpMessageOpt("-bip9params=deployment:start:end", "Use given start/end times for specified BIP9 deployment (regtest-only)"); } string debugCategories = "addrman, alert, bench, cmpctblock, coindb, db, http, libevent, lock, mempool, mempoolrej, net, proxy, prune, rand, reindex, rpc, selectcoins, tor, zmq"; // Don't translate these and qt below if (mode == HMM_BITCOIN_QT) debugCategories += ", qt"; strUsage += HelpMessageOpt("-debug=", strprintf(_("Output debugging information (default: %u, supplying is optional)"), 0) + ". " + _("If is not supplied or if = 1, output all debugging information.") + _(" can be:") + " " + debugCategories + "."); if (showDebug) strUsage += HelpMessageOpt("-nodebug", "Turn off debugging messages, same as -debug=0"); strUsage += HelpMessageOpt("-help-debug", _("Show all debugging options (usage: --help -help-debug)")); strUsage += HelpMessageOpt("-logips", strprintf(_("Include IP addresses in debug output (default: %u)"), DEFAULT_LOGIPS)); strUsage += HelpMessageOpt("-logtimestamps", strprintf(_("Prepend debug output with timestamp (default: %u)"), DEFAULT_LOGTIMESTAMPS)); if (showDebug) { strUsage += HelpMessageOpt("-logtimemicros", strprintf("Add microsecond precision to debug timestamps (default: %u)", DEFAULT_LOGTIMEMICROS)); strUsage += HelpMessageOpt("-mocktime=", "Replace actual time with seconds since epoch (default: 0)"); strUsage += HelpMessageOpt("-limitfreerelay=", strprintf("Continuously rate-limit free transactions to *1000 bytes per minute (default: %u)", DEFAULT_LIMITFREERELAY)); strUsage += HelpMessageOpt("-relaypriority", strprintf("Require high priority for relaying free or low-fee transactions (default: %u)", DEFAULT_RELAYPRIORITY)); strUsage += HelpMessageOpt("-maxsigcachesize=", strprintf("Limit size of signature cache to MiB (default: %u)", DEFAULT_MAX_SIG_CACHE_SIZE)); strUsage += HelpMessageOpt("-maxtipage=", strprintf("Maximum tip age in seconds to consider node in initial block download (default: %u)", DEFAULT_MAX_TIP_AGE)); } strUsage += HelpMessageOpt("-minrelaytxfee=", strprintf(_("Fees (in %s/kB) smaller than this are considered zero fee for relaying, mining and transaction creation (default: %s)"), CURRENCY_UNIT, FormatMoney(DEFAULT_MIN_RELAY_TX_FEE))); strUsage += HelpMessageOpt("-maxtxfee=", strprintf(_("Maximum total fees (in %s) to use in a single wallet transaction or raw transaction; setting this too low may abort large transactions (default: %s)"), CURRENCY_UNIT, FormatMoney(DEFAULT_TRANSACTION_MAXFEE))); strUsage += HelpMessageOpt("-printtoconsole", _("Send trace/debug info to console instead of debug.log file")); if (showDebug) { strUsage += HelpMessageOpt("-printpriority", strprintf("Log transaction priority and fee per kB when mining blocks (default: %u)", DEFAULT_PRINTPRIORITY)); } strUsage += HelpMessageOpt("-shrinkdebugfile", _("Shrink debug.log file on client startup (default: 1 when no -debug)")); AppendParamsHelpMessages(strUsage, showDebug); strUsage += HelpMessageGroup(_("Node relay options:")); if (showDebug) strUsage += HelpMessageOpt("-acceptnonstdtxn", strprintf("Relay and mine \"non-standard\" transactions (%sdefault: %u)", "testnet/regtest only; ", !Params(CBaseChainParams::TESTNET).RequireStandard())); strUsage += HelpMessageOpt("-bytespersigop", strprintf(_("Equivalent bytes per sigop in transactions for relay and mining (default: %u)"), DEFAULT_BYTES_PER_SIGOP)); strUsage += HelpMessageOpt("-datacarrier", strprintf(_("Relay and mine data carrier transactions (default: %u)"), DEFAULT_ACCEPT_DATACARRIER)); strUsage += HelpMessageOpt("-datacarriersize", strprintf(_("Maximum size of data in data carrier transactions we relay and mine (default: %u)"), MAX_OP_RETURN_RELAY)); strUsage += HelpMessageOpt("-mempoolreplacement", strprintf(_("Enable transaction replacement in the memory pool (default: %u)"), DEFAULT_ENABLE_REPLACEMENT)); strUsage += HelpMessageGroup(_("Block creation options:")); strUsage += HelpMessageOpt("-blockmaxweight=", strprintf(_("Set maximum BIP141 block weight (default: %d)"), DEFAULT_BLOCK_MAX_WEIGHT)); strUsage += HelpMessageOpt("-blockmaxsize=", strprintf(_("Set maximum block size in bytes (default: %d)"), DEFAULT_BLOCK_MAX_SIZE)); strUsage += HelpMessageOpt("-blockprioritysize=", strprintf(_("Set maximum size of high-priority/low-fee transactions in bytes (default: %d)"), DEFAULT_BLOCK_PRIORITY_SIZE)); if (showDebug) strUsage += HelpMessageOpt("-blockversion=", "Override block version to test forking scenarios"); strUsage += HelpMessageGroup(_("RPC server options:")); strUsage += HelpMessageOpt("-server", _("Accept command line and JSON-RPC commands")); strUsage += HelpMessageOpt("-rest", strprintf(_("Accept public REST requests (default: %u)"), DEFAULT_REST_ENABLE)); strUsage += HelpMessageOpt("-rpcbind=", _("Bind to given address to listen for JSON-RPC connections. Use [host]:port notation for IPv6. This option can be specified multiple times (default: bind to all interfaces)")); strUsage += HelpMessageOpt("-rpccookiefile=", _("Location of the auth cookie (default: data dir)")); strUsage += HelpMessageOpt("-rpcuser=", _("Username for JSON-RPC connections")); strUsage += HelpMessageOpt("-rpcpassword=", _("Password for JSON-RPC connections")); strUsage += HelpMessageOpt("-rpcauth=", _("Username and hashed password for JSON-RPC connections. The field comes in the format: :$. A canonical python script is included in share/rpcuser. The client then connects normally using the rpcuser=/rpcpassword= pair of arguments. This option can be specified multiple times")); strUsage += HelpMessageOpt("-rpcport=", strprintf(_("Listen for JSON-RPC connections on (default: %u or testnet: %u)"), BaseParams(CBaseChainParams::MAIN).RPCPort(), BaseParams(CBaseChainParams::TESTNET).RPCPort())); strUsage += HelpMessageOpt("-rpcallowip=", _("Allow JSON-RPC connections from specified source. Valid for are a single IP (e.g. 1.2.3.4), a network/netmask (e.g. 1.2.3.4/255.255.255.0) or a network/CIDR (e.g. 1.2.3.4/24). This option can be specified multiple times")); strUsage += HelpMessageOpt("-rpcthreads=", strprintf(_("Set the number of threads to service RPC calls (default: %d)"), DEFAULT_HTTP_THREADS)); if (showDebug) { strUsage += HelpMessageOpt("-rpcworkqueue=", strprintf("Set the depth of the work queue to service RPC calls (default: %d)", DEFAULT_HTTP_WORKQUEUE)); strUsage += HelpMessageOpt("-rpcservertimeout=", strprintf("Timeout during HTTP requests (default: %d)", DEFAULT_HTTP_SERVER_TIMEOUT)); } return strUsage; } std::string LicenseInfo() { const std::string URL_SOURCE_CODE = ""; const std::string URL_WEBSITE = ""; return CopyrightHolders(strprintf(_("Copyright (C) %i-%i"), 2009, COPYRIGHT_YEAR) + " ") + "\n" + "\n" + strprintf(_("Please contribute if you find %s useful. " "Visit %s for further information about the software."), PACKAGE_NAME, URL_WEBSITE) + "\n" + strprintf(_("The source code is available from %s."), URL_SOURCE_CODE) + "\n" + "\n" + _("This is experimental software.") + "\n" + strprintf(_("Distributed under the MIT software license, see the accompanying file %s or %s"), "COPYING", "") + "\n" + "\n" + strprintf(_("This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit %s and cryptographic software written by Eric Young and UPnP software written by Thomas Bernard."), "") + "\n"; } static void BlockNotifyCallback(bool initialSync, const CBlockIndex *pBlockIndex) { if (initialSync || !pBlockIndex) return; std::string strCmd = GetArg("-blocknotify", ""); boost::replace_all(strCmd, "%s", pBlockIndex->GetBlockHash().GetHex()); boost::thread t(runCommand, strCmd); // thread runs free } static bool fHaveGenesis = false; static boost::mutex cs_GenesisWait; static CConditionVariable condvar_GenesisWait; static void BlockNotifyGenesisWait(bool, const CBlockIndex *pBlockIndex) { if (pBlockIndex != NULL) { { boost::unique_lock lock_GenesisWait(cs_GenesisWait); fHaveGenesis = true; } condvar_GenesisWait.notify_all(); } } struct CImportingNow { CImportingNow() { assert(fImporting == false); fImporting = true; } ~CImportingNow() { assert(fImporting == true); fImporting = false; } }; // If we're using -prune with -reindex, then delete block files that will be ignored by the // reindex. Since reindexing works by starting at block file 0 and looping until a blockfile // is missing, do the same here to delete any later block files after a gap. Also delete all // rev files since they'll be rewritten by the reindex anyway. This ensures that vinfoBlockFile // is in sync with what's actually on disk by the time we start downloading, so that pruning // works correctly. void CleanupBlockRevFiles() { using namespace boost::filesystem; map mapBlockFiles; // Glob all blk?????.dat and rev?????.dat files from the blocks directory. // Remove the rev files immediately and insert the blk file paths into an // ordered map keyed by block file index. LogPrintf("Removing unusable blk?????.dat and rev?????.dat files for -reindex with -prune\n"); path blocksdir = GetDataDir() / "blocks"; for (directory_iterator it(blocksdir); it != directory_iterator(); it++) { if (is_regular_file(*it) && it->path().filename().string().length() == 12 && it->path().filename().string().substr(8,4) == ".dat") { if (it->path().filename().string().substr(0,3) == "blk") mapBlockFiles[it->path().filename().string().substr(3,5)] = it->path(); else if (it->path().filename().string().substr(0,3) == "rev") remove(it->path()); } } // Remove all block files that aren't part of a contiguous set starting at // zero by walking the ordered map (keys are block file indices) by // keeping a separate counter. Once we hit a gap (or if 0 doesn't exist) // start removing block files. int nContigCounter = 0; BOOST_FOREACH(const PAIRTYPE(string, path)& item, mapBlockFiles) { if (atoi(item.first) == nContigCounter) { nContigCounter++; continue; } remove(item.second); } } void ThreadImport(std::vector vImportFiles) { const CChainParams& chainparams = Params(); RenameThread("bitcoin-loadblk"); { CImportingNow imp; // -reindex if (fReindex) { int nFile = 0; while (true) { CDiskBlockPos pos(nFile, 0); if (!boost::filesystem::exists(GetBlockPosFilename(pos, "blk"))) break; // No block files left to reindex FILE *file = OpenBlockFile(pos, true); if (!file) break; // This error is logged in OpenBlockFile LogPrintf("Reindexing block file blk%05u.dat...\n", (unsigned int)nFile); LoadExternalBlockFile(chainparams, file, &pos); nFile++; } pblocktree->WriteReindexing(false); fReindex = false; LogPrintf("Reindexing finished\n"); // To avoid ending up in a situation without genesis block, re-try initializing (no-op if reindexing worked): InitBlockIndex(chainparams); } // hardcoded $DATADIR/bootstrap.dat boost::filesystem::path pathBootstrap = GetDataDir() / "bootstrap.dat"; if (boost::filesystem::exists(pathBootstrap)) { FILE *file = fopen(pathBootstrap.string().c_str(), "rb"); if (file) { boost::filesystem::path pathBootstrapOld = GetDataDir() / "bootstrap.dat.old"; LogPrintf("Importing bootstrap.dat...\n"); LoadExternalBlockFile(chainparams, file); RenameOver(pathBootstrap, pathBootstrapOld); } else { LogPrintf("Warning: Could not open bootstrap file %s\n", pathBootstrap.string()); } } // -loadblock= BOOST_FOREACH(const boost::filesystem::path& path, vImportFiles) { FILE *file = fopen(path.string().c_str(), "rb"); if (file) { LogPrintf("Importing blocks file %s...\n", path.string()); LoadExternalBlockFile(chainparams, file); } else { LogPrintf("Warning: Could not open blocks file %s\n", path.string()); } } // scan for better chains in the block chain database, that are not yet connected in the active best chain CValidationState state; if (!ActivateBestChain(state, chainparams)) { LogPrintf("Failed to connect best block"); StartShutdown(); } if (GetBoolArg("-stopafterblockimport", DEFAULT_STOPAFTERBLOCKIMPORT)) { LogPrintf("Stopping after block import\n"); StartShutdown(); } } // End scope of CImportingNow LoadMempool(); } /** Sanity checks * Ensure that Bitcoin is running in a usable environment with all * necessary library support. */ bool InitSanityCheck(void) { if(!ECC_InitSanityCheck()) { InitError("Elliptic curve cryptography sanity check failure. Aborting."); return false; } if (!glibc_sanity_test() || !glibcxx_sanity_test()) return false; return true; } bool AppInitServers(boost::thread_group& threadGroup) { RPCServer::OnStarted(&OnRPCStarted); RPCServer::OnStopped(&OnRPCStopped); RPCServer::OnPreCommand(&OnRPCPreCommand); if (!InitHTTPServer()) return false; if (!StartRPC()) return false; if (!StartHTTPRPC()) return false; if (GetBoolArg("-rest", DEFAULT_REST_ENABLE) && !StartREST()) return false; if (!StartHTTPServer()) return false; return true; } // Parameter interaction based on rules void InitParameterInteraction() { // when specifying an explicit binding address, you want to listen on it // even when -connect or -proxy is specified if (IsArgSet("-bind")) { if (SoftSetBoolArg("-listen", true)) LogPrintf("%s: parameter interaction: -bind set -> setting -listen=1\n", __func__); } if (IsArgSet("-whitebind")) { if (SoftSetBoolArg("-listen", true)) LogPrintf("%s: parameter interaction: -whitebind set -> setting -listen=1\n", __func__); } if (mapMultiArgs.count("-connect") && mapMultiArgs.at("-connect").size() > 0) { // when only connecting to trusted nodes, do not seed via DNS, or listen by default if (SoftSetBoolArg("-dnsseed", false)) LogPrintf("%s: parameter interaction: -connect set -> setting -dnsseed=0\n", __func__); if (SoftSetBoolArg("-listen", false)) LogPrintf("%s: parameter interaction: -connect set -> setting -listen=0\n", __func__); } if (IsArgSet("-proxy")) { // to protect privacy, do not listen by default if a default proxy server is specified if (SoftSetBoolArg("-listen", false)) LogPrintf("%s: parameter interaction: -proxy set -> setting -listen=0\n", __func__); // to protect privacy, do not use UPNP when a proxy is set. The user may still specify -listen=1 // to listen locally, so don't rely on this happening through -listen below. if (SoftSetBoolArg("-upnp", false)) LogPrintf("%s: parameter interaction: -proxy set -> setting -upnp=0\n", __func__); // to protect privacy, do not discover addresses by default if (SoftSetBoolArg("-discover", false)) LogPrintf("%s: parameter interaction: -proxy set -> setting -discover=0\n", __func__); } if (!GetBoolArg("-listen", DEFAULT_LISTEN)) { // do not map ports or try to retrieve public IP when not listening (pointless) if (SoftSetBoolArg("-upnp", false)) LogPrintf("%s: parameter interaction: -listen=0 -> setting -upnp=0\n", __func__); if (SoftSetBoolArg("-discover", false)) LogPrintf("%s: parameter interaction: -listen=0 -> setting -discover=0\n", __func__); if (SoftSetBoolArg("-listenonion", false)) LogPrintf("%s: parameter interaction: -listen=0 -> setting -listenonion=0\n", __func__); } if (IsArgSet("-externalip")) { // if an explicit public IP is specified, do not try to find others if (SoftSetBoolArg("-discover", false)) LogPrintf("%s: parameter interaction: -externalip set -> setting -discover=0\n", __func__); } // disable whitelistrelay in blocksonly mode if (GetBoolArg("-blocksonly", DEFAULT_BLOCKSONLY)) { if (SoftSetBoolArg("-whitelistrelay", false)) LogPrintf("%s: parameter interaction: -blocksonly=1 -> setting -whitelistrelay=0\n", __func__); } // Forcing relay from whitelisted hosts implies we will accept relays from them in the first place. if (GetBoolArg("-whitelistforcerelay", DEFAULT_WHITELISTFORCERELAY)) { if (SoftSetBoolArg("-whitelistrelay", true)) LogPrintf("%s: parameter interaction: -whitelistforcerelay=1 -> setting -whitelistrelay=1\n", __func__); } } static std::string ResolveErrMsg(const char * const optname, const std::string& strBind) { return strprintf(_("Cannot resolve -%s address: '%s'"), optname, strBind); } void InitLogging() { fPrintToConsole = GetBoolArg("-printtoconsole", false); fLogTimestamps = GetBoolArg("-logtimestamps", DEFAULT_LOGTIMESTAMPS); fLogTimeMicros = GetBoolArg("-logtimemicros", DEFAULT_LOGTIMEMICROS); fLogIPs = GetBoolArg("-logips", DEFAULT_LOGIPS); LogPrintf("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n"); LogPrintf("Bitcoin version %s\n", FormatFullVersion()); } namespace { // Variables internal to initialization process only ServiceFlags nRelevantServices = NODE_NETWORK; int nMaxConnections; int nUserMaxConnections; int nFD; ServiceFlags nLocalServices = NODE_NETWORK; } bool AppInitBasicSetup() { // ********************************************************* Step 1: setup #ifdef _MSC_VER // Turn off Microsoft heap dump noise _CrtSetReportMode(_CRT_WARN, _CRTDBG_MODE_FILE); _CrtSetReportFile(_CRT_WARN, CreateFileA("NUL", GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, 0)); #endif #if _MSC_VER >= 1400 // Disable confusing "helpful" text message on abort, Ctrl-C _set_abort_behavior(0, _WRITE_ABORT_MSG | _CALL_REPORTFAULT); #endif #ifdef WIN32 // Enable Data Execution Prevention (DEP) // Minimum supported OS versions: WinXP SP3, WinVista >= SP1, Win Server 2008 // A failure is non-critical and needs no further attention! #ifndef PROCESS_DEP_ENABLE // We define this here, because GCCs winbase.h limits this to _WIN32_WINNT >= 0x0601 (Windows 7), // which is not correct. Can be removed, when GCCs winbase.h is fixed! #define PROCESS_DEP_ENABLE 0x00000001 #endif typedef BOOL (WINAPI *PSETPROCDEPPOL)(DWORD); PSETPROCDEPPOL setProcDEPPol = (PSETPROCDEPPOL)GetProcAddress(GetModuleHandleA("Kernel32.dll"), "SetProcessDEPPolicy"); if (setProcDEPPol != NULL) setProcDEPPol(PROCESS_DEP_ENABLE); #endif if (!SetupNetworking()) return InitError("Initializing networking failed"); #ifndef WIN32 if (!GetBoolArg("-sysperms", false)) { umask(077); } // Clean shutdown on SIGTERM struct sigaction sa; sa.sa_handler = HandleSIGTERM; sigemptyset(&sa.sa_mask); sa.sa_flags = 0; sigaction(SIGTERM, &sa, NULL); sigaction(SIGINT, &sa, NULL); // Reopen debug.log on SIGHUP struct sigaction sa_hup; sa_hup.sa_handler = HandleSIGHUP; sigemptyset(&sa_hup.sa_mask); sa_hup.sa_flags = 0; sigaction(SIGHUP, &sa_hup, NULL); // Ignore SIGPIPE, otherwise it will bring the daemon down if the client closes unexpectedly signal(SIGPIPE, SIG_IGN); #endif return true; } bool AppInitParameterInteraction() { const CChainParams& chainparams = Params(); // ********************************************************* Step 2: parameter interactions // also see: InitParameterInteraction() // if using block pruning, then disallow txindex if (GetArg("-prune", 0)) { if (GetBoolArg("-txindex", DEFAULT_TXINDEX)) return InitError(_("Prune mode is incompatible with -txindex.")); } // Make sure enough file descriptors are available int nBind = std::max( (mapMultiArgs.count("-bind") ? mapMultiArgs.at("-bind").size() : 0) + (mapMultiArgs.count("-whitebind") ? mapMultiArgs.at("-whitebind").size() : 0), size_t(1)); nUserMaxConnections = GetArg("-maxconnections", DEFAULT_MAX_PEER_CONNECTIONS); nMaxConnections = std::max(nUserMaxConnections, 0); // Trim requested connection counts, to fit into system limitations nMaxConnections = std::max(std::min(nMaxConnections, (int)(FD_SETSIZE - nBind - MIN_CORE_FILEDESCRIPTORS)), 0); nFD = RaiseFileDescriptorLimit(nMaxConnections + MIN_CORE_FILEDESCRIPTORS); if (nFD < MIN_CORE_FILEDESCRIPTORS) return InitError(_("Not enough file descriptors available.")); nMaxConnections = std::min(nFD - MIN_CORE_FILEDESCRIPTORS, nMaxConnections); if (nMaxConnections < nUserMaxConnections) InitWarning(strprintf(_("Reducing -maxconnections from %d to %d, because of system limitations."), nUserMaxConnections, nMaxConnections)); // ********************************************************* Step 3: parameter-to-internal-flags fDebug = mapMultiArgs.count("-debug"); // Special-case: if -debug=0/-nodebug is set, turn off debugging messages if (fDebug) { const vector& categories = mapMultiArgs.at("-debug"); if (GetBoolArg("-nodebug", false) || find(categories.begin(), categories.end(), string("0")) != categories.end()) fDebug = false; } // Check for -debugnet if (GetBoolArg("-debugnet", false)) InitWarning(_("Unsupported argument -debugnet ignored, use -debug=net.")); // Check for -socks - as this is a privacy risk to continue, exit here if (IsArgSet("-socks")) return InitError(_("Unsupported argument -socks found. Setting SOCKS version isn't possible anymore, only SOCKS5 proxies are supported.")); // Check for -tor - as this is a privacy risk to continue, exit here if (GetBoolArg("-tor", false)) return InitError(_("Unsupported argument -tor found, use -onion.")); if (GetBoolArg("-benchmark", false)) InitWarning(_("Unsupported argument -benchmark ignored, use -debug=bench.")); if (GetBoolArg("-whitelistalwaysrelay", false)) InitWarning(_("Unsupported argument -whitelistalwaysrelay ignored, use -whitelistrelay and/or -whitelistforcerelay.")); if (IsArgSet("-blockminsize")) InitWarning("Unsupported argument -blockminsize ignored."); // Checkmempool and checkblockindex default to true in regtest mode int ratio = std::min(std::max(GetArg("-checkmempool", chainparams.DefaultConsistencyChecks() ? 1 : 0), 0), 1000000); if (ratio != 0) { mempool.setSanityCheck(1.0 / ratio); } fCheckBlockIndex = GetBoolArg("-checkblockindex", chainparams.DefaultConsistencyChecks()); fCheckpointsEnabled = GetBoolArg("-checkpoints", DEFAULT_CHECKPOINTS_ENABLED); // mempool limits int64_t nMempoolSizeMax = GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000; int64_t nMempoolSizeMin = GetArg("-limitdescendantsize", DEFAULT_DESCENDANT_SIZE_LIMIT) * 1000 * 40; if (nMempoolSizeMax < 0 || nMempoolSizeMax < nMempoolSizeMin) return InitError(strprintf(_("-maxmempool must be at least %d MB"), std::ceil(nMempoolSizeMin / 1000000.0))); // -par=0 means autodetect, but nScriptCheckThreads==0 means no concurrency nScriptCheckThreads = GetArg("-par", DEFAULT_SCRIPTCHECK_THREADS); if (nScriptCheckThreads <= 0) nScriptCheckThreads += GetNumCores(); if (nScriptCheckThreads <= 1) nScriptCheckThreads = 0; else if (nScriptCheckThreads > MAX_SCRIPTCHECK_THREADS) nScriptCheckThreads = MAX_SCRIPTCHECK_THREADS; // block pruning; get the amount of disk space (in MiB) to allot for block & undo files int64_t nSignedPruneTarget = GetArg("-prune", 0) * 1024 * 1024; if (nSignedPruneTarget < 0) { return InitError(_("Prune cannot be configured with a negative value.")); } nPruneTarget = (uint64_t) nSignedPruneTarget; if (nPruneTarget) { if (nPruneTarget < MIN_DISK_SPACE_FOR_BLOCK_FILES) { return InitError(strprintf(_("Prune configured below the minimum of %d MiB. Please use a higher number."), MIN_DISK_SPACE_FOR_BLOCK_FILES / 1024 / 1024)); } LogPrintf("Prune configured to target %uMiB on disk for block and undo files.\n", nPruneTarget / 1024 / 1024); fPruneMode = true; } RegisterAllCoreRPCCommands(tableRPC); #ifdef ENABLE_WALLET RegisterWalletRPCCommands(tableRPC); #endif nConnectTimeout = GetArg("-timeout", DEFAULT_CONNECT_TIMEOUT); if (nConnectTimeout <= 0) nConnectTimeout = DEFAULT_CONNECT_TIMEOUT; // Fee-per-kilobyte amount considered the same as "free" // If you are mining, be careful setting this: // if you set it to zero then // a transaction spammer can cheaply fill blocks using // 1-satoshi-fee transactions. It should be set above the real // cost to you of processing a transaction. if (IsArgSet("-minrelaytxfee")) { CAmount n = 0; if (!ParseMoney(GetArg("-minrelaytxfee", ""), n) || 0 == n) return InitError(AmountErrMsg("minrelaytxfee", GetArg("-minrelaytxfee", ""))); // High fee check is done afterward in CWallet::ParameterInteraction() ::minRelayTxFee = CFeeRate(n); } fRequireStandard = !GetBoolArg("-acceptnonstdtxn", !chainparams.RequireStandard()); if (chainparams.RequireStandard() && !fRequireStandard) return InitError(strprintf("acceptnonstdtxn is not currently supported for %s chain", chainparams.NetworkIDString())); nBytesPerSigOp = GetArg("-bytespersigop", nBytesPerSigOp); #ifdef ENABLE_WALLET if (!CWallet::ParameterInteraction()) return false; #endif fIsBareMultisigStd = GetBoolArg("-permitbaremultisig", DEFAULT_PERMIT_BAREMULTISIG); fAcceptDatacarrier = GetBoolArg("-datacarrier", DEFAULT_ACCEPT_DATACARRIER); nMaxDatacarrierBytes = GetArg("-datacarriersize", nMaxDatacarrierBytes); // Option to startup with mocktime set (used for regression testing): SetMockTime(GetArg("-mocktime", 0)); // SetMockTime(0) is a no-op if (GetBoolArg("-peerbloomfilters", DEFAULT_PEERBLOOMFILTERS)) nLocalServices = ServiceFlags(nLocalServices | NODE_BLOOM); if (GetArg("-rpcserialversion", DEFAULT_RPC_SERIALIZE_VERSION) < 0) return InitError("rpcserialversion must be non-negative."); if (GetArg("-rpcserialversion", DEFAULT_RPC_SERIALIZE_VERSION) > 1) return InitError("unknown rpcserialversion requested."); nMaxTipAge = GetArg("-maxtipage", DEFAULT_MAX_TIP_AGE); fEnableReplacement = GetBoolArg("-mempoolreplacement", DEFAULT_ENABLE_REPLACEMENT); if ((!fEnableReplacement) && IsArgSet("-mempoolreplacement")) { // Minimal effort at forwards compatibility std::string strReplacementModeList = GetArg("-mempoolreplacement", ""); // default is impossible std::vector vstrReplacementModes; boost::split(vstrReplacementModes, strReplacementModeList, boost::is_any_of(",")); fEnableReplacement = (std::find(vstrReplacementModes.begin(), vstrReplacementModes.end(), "fee") != vstrReplacementModes.end()); } if (mapMultiArgs.count("-bip9params")) { // Allow overriding BIP9 parameters for testing if (!chainparams.MineBlocksOnDemand()) { return InitError("BIP9 parameters may only be overridden on regtest."); } const vector& deployments = mapMultiArgs.at("-bip9params"); for (auto i : deployments) { std::vector vDeploymentParams; boost::split(vDeploymentParams, i, boost::is_any_of(":")); if (vDeploymentParams.size() != 3) { return InitError("BIP9 parameters malformed, expecting deployment:start:end"); } int64_t nStartTime, nTimeout; if (!ParseInt64(vDeploymentParams[1], &nStartTime)) { return InitError(strprintf("Invalid nStartTime (%s)", vDeploymentParams[1])); } if (!ParseInt64(vDeploymentParams[2], &nTimeout)) { return InitError(strprintf("Invalid nTimeout (%s)", vDeploymentParams[2])); } bool found = false; for (int j=0; j<(int)Consensus::MAX_VERSION_BITS_DEPLOYMENTS; ++j) { if (vDeploymentParams[0].compare(VersionBitsDeploymentInfo[j].name) == 0) { UpdateRegtestBIP9Parameters(Consensus::DeploymentPos(j), nStartTime, nTimeout); found = true; LogPrintf("Setting BIP9 activation parameters for %s to start=%ld, timeout=%ld\n", vDeploymentParams[0], nStartTime, nTimeout); break; } } if (!found) { return InitError(strprintf("Invalid deployment (%s)", vDeploymentParams[0])); } } } return true; } static bool LockDataDirectory(bool probeOnly) { std::string strDataDir = GetDataDir().string(); // Make sure only a single Bitcoin process is using the data directory. boost::filesystem::path pathLockFile = GetDataDir() / ".lock"; FILE* file = fopen(pathLockFile.string().c_str(), "a"); // empty lock file; created if it doesn't exist. if (file) fclose(file); try { static boost::interprocess::file_lock lock(pathLockFile.string().c_str()); if (!lock.try_lock()) { return InitError(strprintf(_("Cannot obtain a lock on data directory %s. %s is probably already running."), strDataDir, _(PACKAGE_NAME))); } if (probeOnly) { lock.unlock(); } } catch(const boost::interprocess::interprocess_exception& e) { return InitError(strprintf(_("Cannot obtain a lock on data directory %s. %s is probably already running.") + " %s.", strDataDir, _(PACKAGE_NAME), e.what())); } return true; } bool AppInitSanityChecks() { // ********************************************************* Step 4: sanity checks // Initialize elliptic curve code ECC_Start(); globalVerifyHandle.reset(new ECCVerifyHandle()); // Sanity check if (!InitSanityCheck()) return InitError(strprintf(_("Initialization sanity check failed. %s is shutting down."), _(PACKAGE_NAME))); // Probe the data directory lock to give an early error message, if possible return LockDataDirectory(true); } bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler) { const CChainParams& chainparams = Params(); // ********************************************************* Step 4a: application initialization // After daemonization get the data directory lock again and hold on to it until exit // This creates a slight window for a race condition to happen, however this condition is harmless: it // will at most make us exit without printing a message to console. if (!LockDataDirectory(false)) { // Detailed error printed inside LockDataDirectory return false; } #ifndef WIN32 CreatePidFile(GetPidFile(), getpid()); #endif if (GetBoolArg("-shrinkdebugfile", !fDebug)) ShrinkDebugFile(); if (fPrintToDebugLog) OpenDebugLog(); if (!fLogTimestamps) LogPrintf("Startup time: %s\n", DateTimeStrFormat("%Y-%m-%d %H:%M:%S", GetTime())); LogPrintf("Default data directory %s\n", GetDefaultDataDir().string()); LogPrintf("Using data directory %s\n", GetDataDir().string()); LogPrintf("Using config file %s\n", GetConfigFile(GetArg("-conf", BITCOIN_CONF_FILENAME)).string()); LogPrintf("Using at most %i connections (%i file descriptors available)\n", nMaxConnections, nFD); InitSignatureCache(); LogPrintf("Using %u threads for script verification\n", nScriptCheckThreads); if (nScriptCheckThreads) { for (int i=0; i, "scheduler", serviceLoop)); /* Start the RPC server already. It will be started in "warmup" mode * and not really process calls already (but it will signify connections * that the server is there and will be ready later). Warmup mode will * be disabled when initialisation is finished. */ if (GetBoolArg("-server", false)) { uiInterface.InitMessage.connect(SetRPCWarmupStatus); if (!AppInitServers(threadGroup)) return InitError(_("Unable to start HTTP server. See debug log for details.")); } int64_t nStart; // ********************************************************* Step 5: verify wallet database integrity #ifdef ENABLE_WALLET if (!CWallet::Verify()) return false; #endif // ********************************************************* Step 6: network initialization // Note that we absolutely cannot open any actual connections // until the very end ("start node") as the UTXO/block state // is not yet setup and may end up being set up twice if we // need to reindex later. assert(!g_connman); g_connman = std::unique_ptr(new CConnman(GetRand(std::numeric_limits::max()), GetRand(std::numeric_limits::max()))); CConnman& connman = *g_connman; peerLogic.reset(new PeerLogicValidation(&connman)); RegisterValidationInterface(peerLogic.get()); RegisterNodeSignals(GetNodeSignals()); // sanitize comments per BIP-0014, format user agent and check total size std::vector uacomments; if (mapMultiArgs.count("-uacomment")) { BOOST_FOREACH(string cmt, mapMultiArgs.at("-uacomment")) { if (cmt != SanitizeString(cmt, SAFE_CHARS_UA_COMMENT)) return InitError(strprintf(_("User Agent comment (%s) contains unsafe characters."), cmt)); uacomments.push_back(cmt); } } strSubVersion = FormatSubVersion(CLIENT_NAME, CLIENT_VERSION, uacomments); if (strSubVersion.size() > MAX_SUBVERSION_LENGTH) { return InitError(strprintf(_("Total length of network version string (%i) exceeds maximum length (%i). Reduce the number or size of uacomments."), strSubVersion.size(), MAX_SUBVERSION_LENGTH)); } if (mapMultiArgs.count("-onlynet")) { std::set nets; BOOST_FOREACH(const std::string& snet, mapMultiArgs.at("-onlynet")) { enum Network net = ParseNetwork(snet); if (net == NET_UNROUTABLE) return InitError(strprintf(_("Unknown network specified in -onlynet: '%s'"), snet)); nets.insert(net); } for (int n = 0; n < NET_MAX; n++) { enum Network net = (enum Network)n; if (!nets.count(net)) SetLimited(net); } } if (mapMultiArgs.count("-whitelist")) { BOOST_FOREACH(const std::string& net, mapMultiArgs.at("-whitelist")) { CSubNet subnet; LookupSubNet(net.c_str(), subnet); if (!subnet.IsValid()) return InitError(strprintf(_("Invalid netmask specified in -whitelist: '%s'"), net)); connman.AddWhitelistedRange(subnet); } } bool proxyRandomize = GetBoolArg("-proxyrandomize", DEFAULT_PROXYRANDOMIZE); // -proxy sets a proxy for all outgoing network traffic // -noproxy (or -proxy=0) as well as the empty string can be used to not set a proxy, this is the default std::string proxyArg = GetArg("-proxy", ""); SetLimited(NET_TOR); if (proxyArg != "" && proxyArg != "0") { CService resolved(LookupNumeric(proxyArg.c_str(), 9050)); proxyType addrProxy = proxyType(resolved, proxyRandomize); if (!addrProxy.IsValid()) return InitError(strprintf(_("Invalid -proxy address: '%s'"), proxyArg)); SetProxy(NET_IPV4, addrProxy); SetProxy(NET_IPV6, addrProxy); SetProxy(NET_TOR, addrProxy); SetNameProxy(addrProxy); SetLimited(NET_TOR, false); // by default, -proxy sets onion as reachable, unless -noonion later } // -onion can be used to set only a proxy for .onion, or override normal proxy for .onion addresses // -noonion (or -onion=0) disables connecting to .onion entirely // An empty string is used to not override the onion proxy (in which case it defaults to -proxy set above, or none) std::string onionArg = GetArg("-onion", ""); if (onionArg != "") { if (onionArg == "0") { // Handle -noonion/-onion=0 SetLimited(NET_TOR); // set onions as unreachable } else { CService resolved(LookupNumeric(onionArg.c_str(), 9050)); proxyType addrOnion = proxyType(resolved, proxyRandomize); if (!addrOnion.IsValid()) return InitError(strprintf(_("Invalid -onion address: '%s'"), onionArg)); SetProxy(NET_TOR, addrOnion); SetLimited(NET_TOR, false); } } // see Step 2: parameter interactions for more information about these fListen = GetBoolArg("-listen", DEFAULT_LISTEN); fDiscover = GetBoolArg("-discover", true); fNameLookup = GetBoolArg("-dns", DEFAULT_NAME_LOOKUP); fRelayTxes = !GetBoolArg("-blocksonly", DEFAULT_BLOCKSONLY); if (fListen) { bool fBound = false; if (mapMultiArgs.count("-bind")) { BOOST_FOREACH(const std::string& strBind, mapMultiArgs.at("-bind")) { CService addrBind; if (!Lookup(strBind.c_str(), addrBind, GetListenPort(), false)) return InitError(ResolveErrMsg("bind", strBind)); fBound |= Bind(connman, addrBind, (BF_EXPLICIT | BF_REPORT_ERROR)); } } if (mapMultiArgs.count("-whitebind")) { BOOST_FOREACH(const std::string& strBind, mapMultiArgs.at("-whitebind")) { CService addrBind; if (!Lookup(strBind.c_str(), addrBind, 0, false)) return InitError(ResolveErrMsg("whitebind", strBind)); if (addrBind.GetPort() == 0) return InitError(strprintf(_("Need to specify a port with -whitebind: '%s'"), strBind)); fBound |= Bind(connman, addrBind, (BF_EXPLICIT | BF_REPORT_ERROR | BF_WHITELIST)); } } if (!mapMultiArgs.count("-bind") && !mapMultiArgs.count("-whitebind")) { struct in_addr inaddr_any; inaddr_any.s_addr = INADDR_ANY; fBound |= Bind(connman, CService(in6addr_any, GetListenPort()), BF_NONE); fBound |= Bind(connman, CService(inaddr_any, GetListenPort()), !fBound ? BF_REPORT_ERROR : BF_NONE); } if (!fBound) return InitError(_("Failed to listen on any port. Use -listen=0 if you want this.")); } if (mapMultiArgs.count("-externalip")) { BOOST_FOREACH(const std::string& strAddr, mapMultiArgs.at("-externalip")) { CService addrLocal; if (Lookup(strAddr.c_str(), addrLocal, GetListenPort(), fNameLookup) && addrLocal.IsValid()) AddLocal(addrLocal, LOCAL_MANUAL); else return InitError(ResolveErrMsg("externalip", strAddr)); } } if (mapMultiArgs.count("-seednode")) { BOOST_FOREACH(const std::string& strDest, mapMultiArgs.at("-seednode")) connman.AddOneShot(strDest); } #if ENABLE_ZMQ pzmqNotificationInterface = CZMQNotificationInterface::Create(); if (pzmqNotificationInterface) { RegisterValidationInterface(pzmqNotificationInterface); } #endif uint64_t nMaxOutboundLimit = 0; //unlimited unless -maxuploadtarget is set uint64_t nMaxOutboundTimeframe = MAX_UPLOAD_TIMEFRAME; if (IsArgSet("-maxuploadtarget")) { nMaxOutboundLimit = GetArg("-maxuploadtarget", DEFAULT_MAX_UPLOAD_TARGET)*1024*1024; } // ********************************************************* Step 7: load block chain fReindex = GetBoolArg("-reindex", false); bool fReindexChainState = GetBoolArg("-reindex-chainstate", false); // Upgrading to 0.8; hard-link the old blknnnn.dat files into /blocks/ boost::filesystem::path blocksDir = GetDataDir() / "blocks"; if (!boost::filesystem::exists(blocksDir)) { boost::filesystem::create_directories(blocksDir); bool linked = false; for (unsigned int i = 1; i < 10000; i++) { boost::filesystem::path source = GetDataDir() / strprintf("blk%04u.dat", i); if (!boost::filesystem::exists(source)) break; boost::filesystem::path dest = blocksDir / strprintf("blk%05u.dat", i-1); try { boost::filesystem::create_hard_link(source, dest); LogPrintf("Hardlinked %s -> %s\n", source.string(), dest.string()); linked = true; } catch (const boost::filesystem::filesystem_error& e) { // Note: hardlink creation failing is not a disaster, it just means // blocks will get re-downloaded from peers. LogPrintf("Error hardlinking blk%04u.dat: %s\n", i, e.what()); break; } } if (linked) { fReindex = true; } } // cache size calculations int64_t nTotalCache = (GetArg("-dbcache", nDefaultDbCache) << 20); nTotalCache = std::max(nTotalCache, nMinDbCache << 20); // total cache cannot be less than nMinDbCache nTotalCache = std::min(nTotalCache, nMaxDbCache << 20); // total cache cannot be greater than nMaxDbcache int64_t nBlockTreeDBCache = nTotalCache / 8; nBlockTreeDBCache = std::min(nBlockTreeDBCache, (GetBoolArg("-txindex", DEFAULT_TXINDEX) ? nMaxBlockDBAndTxIndexCache : nMaxBlockDBCache) << 20); nTotalCache -= nBlockTreeDBCache; int64_t nCoinDBCache = std::min(nTotalCache / 2, (nTotalCache / 4) + (1 << 23)); // use 25%-50% of the remainder for disk cache nCoinDBCache = std::min(nCoinDBCache, nMaxCoinsDBCache << 20); // cap total coins db cache nTotalCache -= nCoinDBCache; nCoinCacheUsage = nTotalCache; // the rest goes to in-memory cache LogPrintf("Cache configuration:\n"); LogPrintf("* Using %.1fMiB for block index database\n", nBlockTreeDBCache * (1.0 / 1024 / 1024)); LogPrintf("* Using %.1fMiB for chain state database\n", nCoinDBCache * (1.0 / 1024 / 1024)); LogPrintf("* Using %.1fMiB for in-memory UTXO set\n", nCoinCacheUsage * (1.0 / 1024 / 1024)); bool fLoaded = false; while (!fLoaded) { bool fReset = fReindex; std::string strLoadError; uiInterface.InitMessage(_("Loading block index...")); nStart = GetTimeMillis(); do { try { UnloadBlockIndex(); delete pcoinsTip; delete pcoinsdbview; delete pcoinscatcher; delete pblocktree; pblocktree = new CBlockTreeDB(nBlockTreeDBCache, false, fReindex); pcoinsdbview = new CCoinsViewDB(nCoinDBCache, false, fReindex || fReindexChainState); pcoinscatcher = new CCoinsViewErrorCatcher(pcoinsdbview); pcoinsTip = new CCoinsViewCache(pcoinscatcher); if (fReindex) { pblocktree->WriteReindexing(true); //If we're reindexing in prune mode, wipe away unusable block files and all undo data files if (fPruneMode) CleanupBlockRevFiles(); } if (!LoadBlockIndex(chainparams)) { strLoadError = _("Error loading block database"); break; } // If the loaded chain has a wrong genesis, bail out immediately // (we're likely using a testnet datadir, or the other way around). if (!mapBlockIndex.empty() && mapBlockIndex.count(chainparams.GetConsensus().hashGenesisBlock) == 0) return InitError(_("Incorrect or no genesis block found. Wrong datadir for network?")); // Initialize the block index (no-op if non-empty database was already loaded) if (!InitBlockIndex(chainparams)) { strLoadError = _("Error initializing block database"); break; } // Check for changed -txindex state if (fTxIndex != GetBoolArg("-txindex", DEFAULT_TXINDEX)) { strLoadError = _("You need to rebuild the database using -reindex-chainstate to change -txindex"); break; } // Check for changed -prune state. What we are concerned about is a user who has pruned blocks // in the past, but is now trying to run unpruned. if (fHavePruned && !fPruneMode) { strLoadError = _("You need to rebuild the database using -reindex to go back to unpruned mode. This will redownload the entire blockchain"); break; } if (!fReindex && chainActive.Tip() != NULL) { uiInterface.InitMessage(_("Rewinding blocks...")); if (!RewindBlockIndex(chainparams)) { strLoadError = _("Unable to rewind the database to a pre-fork state. You will need to redownload the blockchain"); break; } } uiInterface.InitMessage(_("Verifying blocks...")); if (fHavePruned && GetArg("-checkblocks", DEFAULT_CHECKBLOCKS) > MIN_BLOCKS_TO_KEEP) { LogPrintf("Prune: pruned datadir may not have more than %d blocks; only checking available blocks", MIN_BLOCKS_TO_KEEP); } { LOCK(cs_main); CBlockIndex* tip = chainActive.Tip(); RPCNotifyBlockChange(true, tip); if (tip && tip->nTime > GetAdjustedTime() + 2 * 60 * 60) { strLoadError = _("The block database contains a block which appears to be from the future. " "This may be due to your computer's date and time being set incorrectly. " "Only rebuild the block database if you are sure that your computer's date and time are correct"); break; } } if (!CVerifyDB().VerifyDB(chainparams, pcoinsdbview, GetArg("-checklevel", DEFAULT_CHECKLEVEL), GetArg("-checkblocks", DEFAULT_CHECKBLOCKS))) { strLoadError = _("Corrupted block database detected"); break; } } catch (const std::exception& e) { if (fDebug) LogPrintf("%s\n", e.what()); strLoadError = _("Error opening block database"); break; } fLoaded = true; } while(false); if (!fLoaded) { // first suggest a reindex if (!fReset) { bool fRet = uiInterface.ThreadSafeQuestion( strLoadError + ".\n\n" + _("Do you want to rebuild the block database now?"), strLoadError + ".\nPlease restart with -reindex or -reindex-chainstate to recover.", "", CClientUIInterface::MSG_ERROR | CClientUIInterface::BTN_ABORT); if (fRet) { fReindex = true; fRequestShutdown = false; } else { LogPrintf("Aborted block database rebuild. Exiting.\n"); return false; } } else { return InitError(strLoadError); } } } // As LoadBlockIndex can take several minutes, it's possible the user // requested to kill the GUI during the last operation. If so, exit. // As the program has not fully started yet, Shutdown() is possibly overkill. if (fRequestShutdown) { LogPrintf("Shutdown requested. Exiting.\n"); return false; } LogPrintf(" block index %15dms\n", GetTimeMillis() - nStart); boost::filesystem::path est_path = GetDataDir() / FEE_ESTIMATES_FILENAME; CAutoFile est_filein(fopen(est_path.string().c_str(), "rb"), SER_DISK, CLIENT_VERSION); // Allowed to fail as this file IS missing on first startup. if (!est_filein.IsNull()) mempool.ReadFeeEstimates(est_filein); fFeeEstimatesInitialized = true; // ********************************************************* Step 8: load wallet #ifdef ENABLE_WALLET if (!CWallet::InitLoadWallet()) return false; #else LogPrintf("No wallet support compiled in!\n"); #endif // ********************************************************* Step 9: data directory maintenance // if pruning, unset the service bit and perform the initial blockstore prune // after any wallet rescanning has taken place. if (fPruneMode) { LogPrintf("Unsetting NODE_NETWORK on prune mode\n"); nLocalServices = ServiceFlags(nLocalServices & ~NODE_NETWORK); if (!fReindex) { uiInterface.InitMessage(_("Pruning blockstore...")); PruneAndFlush(); } } if (chainparams.GetConsensus().vDeployments[Consensus::DEPLOYMENT_SEGWIT].nTimeout != 0) { // Only advertize witness capabilities if they have a reasonable start time. // This allows us to have the code merged without a defined softfork, by setting its // end time to 0. // Note that setting NODE_WITNESS is never required: the only downside from not // doing so is that after activation, no upgraded nodes will fetch from you. nLocalServices = ServiceFlags(nLocalServices | NODE_WITNESS); // Only care about others providing witness capabilities if there is a softfork // defined. nRelevantServices = ServiceFlags(nRelevantServices | NODE_WITNESS); } // ********************************************************* Step 10: import blocks if (!CheckDiskSpace()) return false; // Either install a handler to notify us when genesis activates, or set fHaveGenesis directly. // No locking, as this happens before any background thread is started. if (chainActive.Tip() == NULL) { uiInterface.NotifyBlockTip.connect(BlockNotifyGenesisWait); } else { fHaveGenesis = true; } if (IsArgSet("-blocknotify")) uiInterface.NotifyBlockTip.connect(BlockNotifyCallback); std::vector vImportFiles; if (mapMultiArgs.count("-loadblock")) { BOOST_FOREACH(const std::string& strFile, mapMultiArgs.at("-loadblock")) vImportFiles.push_back(strFile); } threadGroup.create_thread(boost::bind(&ThreadImport, vImportFiles)); // Wait for genesis block to be processed { boost::unique_lock lock(cs_GenesisWait); while (!fHaveGenesis) { condvar_GenesisWait.wait(lock); } uiInterface.NotifyBlockTip.disconnect(BlockNotifyGenesisWait); } // ********************************************************* Step 11: start node //// debug print LogPrintf("mapBlockIndex.size() = %u\n", mapBlockIndex.size()); LogPrintf("nBestHeight = %d\n", chainActive.Height()); if (GetBoolArg("-listenonion", DEFAULT_LISTEN_ONION)) StartTorControl(threadGroup, scheduler); Discover(threadGroup); // Map ports with UPnP MapPort(GetBoolArg("-upnp", DEFAULT_UPNP)); std::string strNodeError; CConnman::Options connOptions; connOptions.nLocalServices = nLocalServices; connOptions.nRelevantServices = nRelevantServices; connOptions.nMaxConnections = nMaxConnections; connOptions.nMaxOutbound = std::min(MAX_OUTBOUND_CONNECTIONS, connOptions.nMaxConnections); connOptions.nMaxFeeler = 1; connOptions.nBestHeight = chainActive.Height(); connOptions.uiInterface = &uiInterface; connOptions.nSendBufferMaxSize = 1000*GetArg("-maxsendbuffer", DEFAULT_MAXSENDBUFFER); connOptions.nReceiveFloodSize = 1000*GetArg("-maxreceivebuffer", DEFAULT_MAXRECEIVEBUFFER); connOptions.nMaxOutboundTimeframe = nMaxOutboundTimeframe; connOptions.nMaxOutboundLimit = nMaxOutboundLimit; if (!connman.Start(scheduler, strNodeError, connOptions)) return InitError(strNodeError); // ********************************************************* Step 12: finished SetRPCWarmupFinished(); uiInterface.InitMessage(_("Done loading")); #ifdef ENABLE_WALLET if (pwalletMain) pwalletMain->postInitProcess(threadGroup); #endif return !fRequestShutdown; }